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This study aimed to elucidate whether changes in serum opsonic activity measured by lucigenin-dependent chemiluminescence and luminol-dependent chemiluminescence are useful for estimating physical stress during the perioperative period of gastric endoscopic submucosal dissection. Serum opsonic activity in the peripheral blood of 87 patients was examined in the morning of the day of endoscopic submucosal dissection, the next day, and at 4 days after endoscopic submucosal dissection. Peak height and area under the curve for lucigenin-dependent chemiluminescence were 106.1 ± 22.7% and 102.0 ± 24.7% on the day of endoscopic submucosal dissection, which increased significantly to 113.6 ± 29.4% and 111.0 ± 29.1% on the next day (both p &lt;0.01), and 112.4 ± 27.0% and 110.0 ± 28.1% at 4 days after endoscopic submucosal dissection (both p &lt;0.01), respectively. In contrast, significant changes were not observed in peak height and area under the curve for luminol-dependent chemiluminescence during the perioperative period of endoscopic submucosal dissection. This difference suggests that serum opsonic activity during the perioperative period of gastric endoscopic submucosal dissection is associated with the production of substances with lower oxidizing potential. (The study of changes in neutrophil function and physical stress during the perioperative period of endoscopic operation: UMIN000034514).

Influence of gastric endoscopic submucosal dissection on serum opsonic activity measured by chemiluminescence